Please note that not all cases of disease or outbreaks are reported; some outbreaks may only be reported if they occur outside of the usual recognised risk area or season, or they have been reported in greater than usual numbers. See 'About Outbreaks' tab below for further detail.
For further information on red, amber and green alert categories, see About Outbreaks tab.
Dengue in Brazil
As of 1 Feburary 2026, 62,707 cases (eight deaths) of dengue have been reported in Brazil since the start of the year. Case numbers usually increase during the first few months of the year. A total of 1,453,633 confirmed cases (1,793 deaths) were reported during 2025. Serotypes DENV-1, DENV-2, DENV-3 and DENV-4 were all reported. Please see our Topics in Brief article for further details on dengue.
As of 27 October 2025, a total of 3,468,229 confirmed dengue cases have been reported in Brazil for 2025. Serotypes DENV-1, DENV-2, DENV-3 and DENV-4 have all been reported. Please see our Topics in Brief article for further details on dengue.
Source: PAHOAs of 10 July 2025, a total of 3,009,352 confirmed dengue cases have been reported in Brazil for 2025. Serotypes DENV-1, DENV-2, DENV-3 and DENV-4 have all been reported. Please see our Topics in Brief article for further details on dengue.
Source: PAHOAs of 12 April 2025, a total of 1,019,033 confirmed cases of dengue and 714 deaths (681 confirmed) have been reported in Brazil since 1 January 2025 (479.4 cases per 100,000 population). Sao Paulo has reported the most cases (590,850) and the highest incidence rate per 100,000 population (1,285.2). Please see our Topics in Brief article for further details on dengue.
Source: StateAs of 29 March 2025, a total of 799,512 confirmed dengue cases and 451 deaths have been reported in Brazil since 1 January 2025. Please see our Topics in Brief article for further details on dengue.
Source: StateAs of 8 March 2025, a total of 533,829 confirmed cases of dengue and 243 deaths have been reported since 1 January 2025. Please see our Topics in Brief article for further details on dengue.
Source: StateAs of 20 February 2025, a total of 359,725 dengue cases, with 152 deaths, have been reported in Brazil since the beginning of 2025. Please see our Topics in Brief article for further details on dengue.
Source: StateBetween 1 January and 2 November 2024, a total of 6,555,320 confirmed cases of dengue were reported in Brazil. Please see our Topics in Brief article for further details on dengue.
Source: StateBrazil reported 5,542,348 cases between 1 January 2024 and 3 May 2024, representing an increase of 371% compared to the same period in 2023. The cumulative incidence rate to 3 May 2024 is 2,590 cases per 100,000 population.
Source: PAHOAs of 4 March 2024, a total of 1,212,263 probable cases of dengue have been reported since the start of the year. Distrito Federal reports the highest incidence rates with 4,174 probable cases per 100,000 population.
Source: StateAs of 19 February 2024, a total of 653,656 probable dengue cases, with 113 deaths (and 438 deaths under investigation) have been reported in 2024. Minas Gerais state has reported the highest number with 218,066 cases and the Federal District has reported the highest incidence rate.
Source: StateAs of 5 February 2024, a total of 345,235 probable dengue cases, with 36 deaths (and 234 deaths under investigation) have been reported in 2024. Cases have been reported in all regions of Brazil. A state of emergency has been declared in Rio de Janeiro and an emergency operations centre has been established.
Source: StateDengue in Paraguay
As of 25 January 2026, 2,412 suspected cases of dengue have been reported in Paraguay since the start of the year. Case numbers usually increase during the first few months of the year. A total of 31,656 suspected cases were reported during 2025. Serotypes DENV-1, DENV-2 and DENV-3 were reported. Please see our Topics in Brief article for further details on dengue.
As of 6 September 2025, a total of 23,661 cases of dengue have been reported since the start of the year. Serotypes DENV1, DENV2 and DENV3 have been recorded in Paraguay during 2025. Please see our Topics in Brief article for further details on dengue.
Source: PAHOParaguay reported 246,509 cases of dengue between 1 January 2024 and 26 April 2024, representing an increase of more than 1,800% compared to the same period in 2023. The cumulative incidence rate as of 26 April 2024 is 3,263 cases per 100,000 population.
Source: PAHODengue in Panama
As of 18 January 2026, 732 suspected cases of dengue have been reported in Panama since the start of the year. A total of 19,809 cases (28 deaths) were reported during 2025. Serotypes DENV-1, DENV-2, DENV-3 and DENV-4 were all reported. Please see our Topics in Brief article for further details on dengue.
As of 7 October 2024, a total of 25,092 dengue cases (including 149 severe dengue cases) and 39 deaths have been reported in 2024. This is an increase of 177% compared to the same period in 2023.
Source: PAHOAs of 26 July 2024, a total of 11,403 dengue cases, and 16 deaths, have been reported since the beginning of 2024. DENV-1, DENV-2 and DENV-3 viruses have been identified in the country.
Source: PAHOChikungunya in Cuba
As of 25 January 2026, a total of 1,457 suspected cases of chikungunya have been reported in Cuba since the start of the year. 51,217 suspected cases (46 death) were reported during 2025. Please see our Topics in Brief article for further details on chikungunya.
As of 29 November 2025, a total of 38,342 suspected cases of chikungunya (1,241 confirmed) have been reported during 2025. Please see our Topics in Brief article for further details on chikungunya.
Source: PAHOAs of 1 November 2025, a total of 20,062 (with 622 confirmed) cases of chikungunya have been reported during 2025. Please see our Topics in Brief article for further details on chikungunya.
Source: WHOAs of 24 October 2025, a total of 4,472 (with 120 confirmed) cases of chikungunya have been reported during 2025. Please see our Topics in Brief article for further details on chikungunya.
Source: PAHOAs of 20 September 2025, 34 confirmed cases of chikungunya have been reported in the provinces of Guantanamo, La Habana, Matanzas, Pinar del Rio and Santiago de Cuba. Please see our Topics in Brief article for further details on chikungunya.
Source: WHOAs of 26 July 2025, a total of eight confirmed locally acquired chikungunya cases have been reported in Cuba in 2025. Please see our Topics in Brief article for further details on chikungunya.
Source: PAHODengue in Cuba
As of 11 January 2026, 202 suspected cases of dengue have been reported in Cuba since the start of the year. A total of 30,692 cases (19 deaths) were reported during 2025. Serotypes DENV-1, DENV-2 and DENV-3 were reported. Please see our Topics in Brief article for further details on dengue.
As of 22 September 2025, a total of 6,519 cases of dengue have been reported during 2025. 166 of these cases have been laboratory confirmed. Serotypes DENV3 and DENV4 have been recorded. Please see our Topics in Brief article for further details on dengue.
Source: PAHOCholera in Malawi
Between 1 January and 16 February 2026, a total of 828 suspected cholera cases, with 87 confirmed cases and two deaths, have been reported. Currently Blantyre is reporting the highest number of cases, followed by Lilongwe, Kasungu, Neno and Chikwawa. Please see our Topics in Brief article for further details on cholera.
As of 17 January 2026, there have been 280 suspected cases including 31 confirmed cases across nine districts. The majority (eight cases) have been in Blantyre, followed by Neno and Balaka with one case each. See our Topics in Brief article for further details on cholera.
Source: StateCholera in Mozambique
As of 10 February 2026, a total of 870 new confirmed cholera cases and 22 deaths have been reported across four provinces in Mozambique since 4 February 2026. This is a 95% average increase in the number of new cases in the last four weeks. Please see our Topics in Brief article for further details on cholera.
In 2025, a total of 5,787 confirmed cholera cases and 68 deaths have been reported from eight out of ten provinces in Mozambique. In the past four weeks, a 70 percent increase in cholera cases has been reported. Please see our Topics in Brief article for further details on cholera.
Source: Africa CDCAs of 10 December 2025, 4,813 confirmed cholera cases (48 deaths) across 8 out of 10 provinces have been reported in 2025. The most recent outbreaks began in September 2025 in Cabo Delgado, Nampula and Tete provinces. Please see our Topics in Brief article for further details on cholera.
Source: Africa CDCAs of 28 July 2025, 4,117 confirmed cases and 43 deaths across 5 out of 10 provinces have been reported in 2025. Please see our Topics in Brief article for further details on cholera.
Source: Africa CDCChikungunya in Guyana
As of 10 February 2026, six locally acquired (autochthonous) cases of chikungunya have been reported from Guyana. Until this report, no locally acquired cases had been reported from Guyana in the last nine years. Please see our Topics in Brief article for further details on chikungunya.
Mpox in Mayotte
As of 5 February 2026, six confirmed mpox cases have been reported in Mayotte for 2026. Please see our Topics in Brief article for further details on mpox.
Nipah virus in Bangladesh
On 6 February 2026, one confirmed fatal Nipah virus disease case was reported in Bangladesh for 2026. This case had no history of travel abroad, but had drunk raw date palm sap. No further cases have been detected; all contacts are being monitored and have tested negative. Bangladesh first reported Nipah virus disease in 2001 and infections have been reported almost every year since, with four confirmed cases in 2025. Risk of international spread is low. Please see our Topics in Brief article for further details on Nipah viral disease.
NaTHNaC regularly review and update information on disease outbreaks and other health issues that may affect the UK traveller. You can search the information by disease or by country in our Outbreak Surveillance section.
The information comes from a wide variety of sources and can be used along with the Country Information section of our website where you will find recommendations on vaccines, malaria and other risks for each country (where relevant).
Please note that not all cases of disease or outbreaks are reported. In some countries, there may be limited surveillance and reporting processes in place so information can be difficult to obtain. Some diseases may only be reported if they occur outside of the usual recognised risk area or season, or they have been reported in greater than usual numbers. Outbreaks of those diseases included in the UK childhood vaccination programme are not usually reported unless the outbreak is unusual or unexpected.
The information presented in the disease surveillance reports is collated from a variety of sources, including government bodies, international organisations and the media. The verification status of each report is clearly indicated. Verified reports are confirmed by official sources. Some unverified reports are included to ensure timely dissemination of information and where possible we will try to substantiate these reports, although confirmation may not always be possible. Unverified reports may be subject to change, misreporting and may later prove to be unsubstantiated. They should not therefore be regarded as official.
Where available, a web link is provided to the original information source. We cannot accept responsibility for the sites to which it links, or for the information found on those sites. Linking to outside sites does not in any way imply endorsement of these sites. If you wish to use the following content for official purposes, please refer to the original sources of information.
Key to NaTHNaC alert level feature
LEVEL 1: GREEN |
Take usual precautions
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Follow standard protective measures, as recommended for this destination, disease or situation. Be aware that advice may change and check for updates. |
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LEVEL 2: AMBER |
Take extra precautions
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Follow any additional precautions recommended. Be alert and check regularly for changes in advice about this ongoing situation. Advice may be relevant for all travellers or apply to a specific group of travellers. |
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LEVEL 3: RED |
FCDO advise against travel
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The Foreign, Commonwealth & Development Office (FCDO) advise against travel on health grounds. This may mean avoiding non-essential travel, or all travel, follow the FCDO advice for details. Please note we do not report on FCDO safety and security alerts. Travellers should check the FCDO travel advisories for their destination for this information. |
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Alert categories are based on the situation at the time of publication. They will not be routinely updated unless outbreak information or a news item is updated.
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